/* roulang page: index */
:root {
            --primary: #0F52BA;
            --primary-hover: #0b3f8f;
            --accent: #00A896;
            --accent-hover: #008f80;
            --bg-light: #F8FAFC;
            --card-bg: #FFFFFF;
            --dark-navy: #0A192F;
            --dark-navy-card: #112240;
            --text-title: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border-color: #E2E8F0;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-subtle: 0 4px 20px -2px rgba(15, 82, 186, 0.06);
            --shadow-float: 0 12px 30px -4px rgba(15, 82, 186, 0.14);
            --transition-normal: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-light);
            color: var(--text-body);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-normal);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* 顶部信息条与主导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
        }

        .top-info-bar {
            background-color: #F1F5F9;
            font-size: 0.825rem;
            color: var(--text-muted);
            padding: 6px 0;
            border-bottom: 1px solid #E2E8F0;
        }

        .top-info-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .top-info-group {
            display: flex;
            align-items: center;
            gap: 24px;
        }

        .main-navbar {
            padding: 14px 0;
        }

        .nav-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
        }

        .brand-logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1.1rem;
        }

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 28px;
            align-items: center;
        }

        .nav-link {
            font-weight: 500;
            color: var(--text-body);
            font-size: 0.95rem;
            position: relative;
            padding: 4px 0;
        }

        .nav-link:hover, .nav-link.active {
            color: var(--primary);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: var(--transition-normal);
        }

        .nav-link:hover::after, .nav-link.active::after {
            width: 100%;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: var(--transition-normal);
            border: 1px solid transparent;
            min-height: 44px;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #FFFFFF;
            box-shadow: 0 4px 14px rgba(15, 82, 186, 0.25);
        }

        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(15, 82, 186, 0.35);
        }

        .btn-accent {
            background-color: var(--accent);
            color: #FFFFFF;
        }

        .btn-accent:hover {
            background-color: var(--accent-hover);
            transform: translateY(-2px);
        }

        .btn-outline {
            background-color: transparent;
            border-color: var(--border-color);
            color: var(--text-title);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: #EFF6FF;
        }

        .btn-outline-white {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.4);
            color: #FFFFFF;
        }

        .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #FFFFFF;
        }

        .menu-toggle {
            display: none;
            background: transparent;
            border: none;
            cursor: pointer;
            width: 44px;
            height: 44px;
            padding: 8px;
            flex-direction: column;
            justify-content: space-around;
        }

        .menu-toggle span {
            width: 100%;
            height: 2px;
            background-color: var(--text-title);
            transition: var(--transition-normal);
        }

        /* 统一 Section 节律 */
        .section-padding {
            padding: 88px 0;
            position: relative;
        }

        .section-header {
            text-align: center;
            max-width: 820px;
            margin: 0 auto 56px auto;
        }

        .badge-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 9999px;
            background-color: rgba(15, 82, 186, 0.08);
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 2.15rem;
            font-weight: 800;
            color: var(--text-title);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* 1. Hero 板块 */
        .hero-section {
            position: relative;
            background: linear-gradient(135deg, rgba(10, 25, 47, 0.88), rgba(15, 82, 186, 0.82)), url('/assets/images/66b0862cb025c95a.jpg') center/cover no-repeat;
            color: #FFFFFF;
            padding: 110px 0 90px 0;
            overflow: hidden;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
        }

        .hero-h1 {
            font-size: 2.75rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 22px;
            letter-spacing: -0.5px;
        }

        .hero-h1 span {
            color: #38BDF8;
        }

        .hero-summary {
            font-size: 1.1rem;
            color: #E2E8F0;
            line-height: 1.7;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 40px;
        }

        .hero-trust-bar {
            display: flex;
            align-items: center;
            gap: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 24px;
            font-size: 0.875rem;
            color: #CBD5E1;
        }

        .hero-video-box {
            position: relative;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-lg);
            padding: 12px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
            backdrop-filter: blur(8px);
        }

        .hero-video-preview {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background-color: #000;
        }

        .hero-video-preview img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.85;
            transition: transform 0.4s ease;
        }

        .hero-video-preview:hover img {
            transform: scale(1.03);
        }

        .play-pulse-btn {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 64px;
            height: 64px;
            background: var(--accent);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFF;
            box-shadow: 0 0 0 0 rgba(0, 168, 150, 0.7);
            animation: pulse-ring 2s infinite;
            cursor: pointer;
            border: none;
        }

        @keyframes pulse-ring {
            0% { box-shadow: 0 0 0 0 rgba(0, 168, 150, 0.7); }
            70% { box-shadow: 0 0 0 18px rgba(0, 168, 150, 0); }
            100% { box-shadow: 0 0 0 0 rgba(0, 168, 150, 0); }
        }

        /* 2. 倒计时与系统总览板块 */
        .countdown-strip {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 24px 32px;
            margin-top: -40px;
            position: relative;
            z-index: 20;
            box-shadow: var(--shadow-subtle);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        .countdown-info h3 {
            font-size: 1.15rem;
            color: var(--text-title);
            margin-bottom: 4px;
        }

        .countdown-info p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .countdown-timer {
            display: flex;
            gap: 12px;
        }

        .time-box {
            background: #F1F5F9;
            border: 1px solid #E2E8F0;
            border-radius: 8px;
            padding: 8px 14px;
            text-align: center;
            min-width: 58px;
        }

        .time-box .num {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
        }

        .time-box .unit {
            font-size: 0.725rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .overview-split {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            margin-top: 56px;
        }

        .overview-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-float);
            border: 1px solid var(--border-color);
            background: #FFF;
        }

        .spec-list-badge {
            position: absolute;
            bottom: 16px;
            left: 16px;
            right: 16px;
            background: rgba(15, 23, 42, 0.85);
            backdrop-filter: blur(8px);
            padding: 12px 18px;
            border-radius: var(--radius-md);
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            color: #FFF;
            text-align: center;
            font-size: 0.8rem;
        }

        .spec-list-badge strong {
            display: block;
            font-size: 1.05rem;
            color: #38BDF8;
        }

        /* 3. 核心优势 6 宫格卡片 */
        .strengths-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .strength-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-subtle);
            transition: var(--transition-normal);
            position: relative;
        }

        .strength-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-float);
            border-color: rgba(15, 82, 186, 0.3);
        }

        .card-icon-wrapper {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background-color: #EFF6FF;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .strength-card:nth-child(2) .card-icon-wrapper,
        .strength-card:nth-child(5) .card-icon-wrapper {
            background-color: #E6FFFA;
            color: var(--accent);
        }

        .strength-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 12px;
        }

        .strength-card p {
            font-size: 0.925rem;
            color: var(--text-body);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .card-indicator {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* 4. 热门硬件与智能平台 3 栏大型卡片 */
        .products-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .product-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            overflow: hidden;
            box-shadow: var(--shadow-subtle);
            transition: var(--transition-normal);
            display: flex;
            flex-direction: column;
        }

        .product-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-float);
        }

        .product-thumb {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            position: relative;
        }

        .product-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .product-card:hover .product-thumb img {
            transform: scale(1.05);
        }

        .product-category-tag {
            position: absolute;
            top: 14px;
            right: 14px;
            background: rgba(15, 82, 186, 0.9);
            color: #FFF;
            padding: 4px 10px;
            border-radius: 6px;
            font-size: 0.775rem;
            font-weight: 600;
        }

        .product-body {
            padding: 28px 24px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .product-body h3 {
            font-size: 1.25rem;
            color: var(--text-title);
            margin-bottom: 10px;
        }

        .product-body p {
            font-size: 0.925rem;
            color: var(--text-body);
            line-height: 1.6;
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .product-features {
            list-style: none;
            border-top: 1px solid #F1F5F9;
            padding-top: 16px;
            margin-bottom: 20px;
        }

        .product-features li {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* 5. 全场景服务矩阵 4 列 */
        .service-matrix-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .matrix-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            transition: var(--transition-normal);
        }

        .matrix-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-float);
            transform: translateY(-4px);
        }

        .matrix-icon {
            width: 60px;
            height: 60px;
            margin: 0 auto 18px auto;
            border-radius: 50%;
            background: #F0FDF4;
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
        }

        .matrix-card h3 {
            font-size: 1.15rem;
            color: var(--text-title);
            margin-bottom: 12px;
        }

        .matrix-card p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 6. 深色高对比全景技术架构 */
        .dark-tech-section {
            background-color: var(--dark-navy);
            color: #FFFFFF;
            position: relative;
            overflow: hidden;
        }

        .dark-tech-section .section-title {
            color: #FFFFFF;
        }

        .dark-tech-section .section-desc {
            color: #94A3B8;
        }

        .arch-topology {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 48px;
            position: relative;
        }

        .arch-node-card {
            background: var(--dark-navy-card);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            position: relative;
            transition: var(--transition-normal);
        }

        .arch-node-card:hover {
            border-color: var(--accent);
            box-shadow: 0 0 25px rgba(0, 168, 150, 0.25);
        }

        .node-step-tag {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 1px;
            margin-bottom: 8px;
            display: block;
        }

        .arch-node-card h3 {
            font-size: 1.15rem;
            color: #F8FAFC;
            margin-bottom: 12px;
        }

        .arch-node-card p {
            font-size: 0.875rem;
            color: #94A3B8;
            line-height: 1.6;
        }

        /* 7. 标杆客户实施故事 */
        .story-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            padding: 40px;
            box-shadow: var(--shadow-subtle);
        }

        .story-media {
            border-radius: var(--radius-md);
            overflow: hidden;
            position: relative;
        }

        .story-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--primary);
            color: #FFF;
            padding: 6px 14px;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .story-content h3 {
            font-size: 1.65rem;
            color: var(--text-title);
            margin-bottom: 16px;
            line-height: 1.35;
        }

        .story-content p {
            font-size: 0.95rem;
            color: var(--text-body);
            margin-bottom: 24px;
            line-height: 1.7;
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.875rem;
            margin-bottom: 24px;
        }

        .comparison-table th, .comparison-table td {
            padding: 10px 14px;
            border: 1px solid #E2E8F0;
            text-align: left;
        }

        .comparison-table th {
            background-color: #F8FAFC;
            font-weight: 600;
            color: var(--text-title);
        }

        .comparison-table .highlight-col {
            color: var(--primary);
            font-weight: 600;
            background-color: #EFF6FF;
        }

        /* 8. 关键业务运行数据统计条 */
        .metric-counter-band {
            background: linear-gradient(135deg, #0F52BA, #0b3f8f);
            color: #FFFFFF;
            padding: 56px 0;
        }

        .counter-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }

        .counter-box .num {
            font-size: 2.85rem;
            font-weight: 800;
            line-height: 1;
            margin-bottom: 8px;
            font-family: inherit;
        }

        .counter-box .label {
            font-size: 0.95rem;
            color: #E2E8F0;
        }

        /* 9. 标准化建设与部署流程 5 步 */
        .stepper-timeline {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            position: relative;
        }

        .stepper-timeline::before {
            content: '';
            position: absolute;
            top: 28px;
            left: 5%;
            right: 5%;
            height: 2px;
            background: #CBD5E1;
            z-index: 1;
        }

        .step-item {
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .step-circle {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: #FFFFFF;
            border: 3px solid var(--primary);
            color: var(--primary);
            font-size: 1.25rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px auto;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.06);
        }

        .step-item h3 {
            font-size: 1.05rem;
            color: var(--text-title);
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* 10. 行业信赖与用户评价区 */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .testimonial-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-subtle);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .stars-row {
            color: #F59E0B;
            font-size: 1.1rem;
            margin-bottom: 16px;
        }

        .quote-text {
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 24px;
            font-style: normal;
        }

        .reviewer-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            border-top: 1px solid #F1F5F9;
            padding-top: 16px;
        }

        .reviewer-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: #E2E8F0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary);
            font-size: 1rem;
        }

        .reviewer-info h4 {
            font-size: 0.95rem;
            color: var(--text-title);
        }

        .reviewer-info span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 11. 行业资讯精要 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .news-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            overflow: hidden;
            box-shadow: var(--shadow-subtle);
            transition: var(--transition-normal);
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-float);
        }

        .news-cover {
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }

        .news-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .news-card:hover .news-cover img {
            transform: scale(1.05);
        }

        .news-body {
            padding: 24px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .news-body h3 {
            font-size: 1.15rem;
            color: var(--text-title);
            margin-bottom: 12px;
            line-height: 1.45;
        }

        .news-body p {
            font-size: 0.875rem;
            color: var(--text-body);
            line-height: 1.6;
            margin-bottom: 16px;
            flex-grow: 1;
        }

        /* 12. 常见问题手风琴 */
        .faq-accordion-list {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        details.faq-item {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition-normal);
        }

        details.faq-item[open] {
            border-color: var(--primary);
            box-shadow: var(--shadow-subtle);
        }

        summary.faq-question {
            padding: 20px 24px;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-title);
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        summary.faq-question::-webkit-details-marker {
            display: none;
        }

        .faq-arrow {
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform 0.25s ease;
            color: var(--text-muted);
        }

        details[open] .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            padding: 0 24px 22px 24px;
            color: var(--text-body);
            font-size: 0.95rem;
            line-height: 1.7;
            border-top: 1px solid #F8FAFC;
        }

        /* 13. 底部咨询与集客转化区 */
        .cta-box-wrapper {
            background: linear-gradient(135deg, #FFFFFF 0%, #EFF6FF 100%);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            box-shadow: var(--shadow-float);
        }

        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .cta-text h3 {
            font-size: 2.15rem;
            color: var(--text-title);
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .cta-text p {
            font-size: 1rem;
            color: var(--text-muted);
            margin-bottom: 28px;
            line-height: 1.65;
        }

        .cta-benefits-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .cta-benefits-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.925rem;
            color: var(--text-body);
        }

        .lead-form-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-subtle);
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-label {
            display: block;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 6px;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #CBD5E1;
            border-radius: 8px;
            background: #F8FAFC;
            color: var(--text-title);
            transition: var(--transition-normal);
        }

        .form-control:focus {
            border-color: var(--primary);
            background: #FFFFFF;
            box-shadow: 0 0 0 3px rgba(15, 82, 186, 0.15);
        }

        /* 浮动转化条 (Sticky Float Bar) */
        .floating-action-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(15, 23, 42, 0.92);
            backdrop-filter: blur(10px);
            color: #FFFFFF;
            padding: 12px 0;
            z-index: 999;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            transform: translateY(100%);
            transition: transform 0.3s ease;
        }

        .floating-action-bar.visible {
            transform: translateY(0);
        }

        .floating-bar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        /* 全局页脚 */
        .site-footer {
            background-color: #0A192F;
            color: #94A3B8;
            padding: 64px 0 32px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
            gap: 48px;
            margin-bottom: 48px;
        }

        .footer-logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 16px;
            display: inline-block;
        }

        .footer-col h4 {
            color: #FFFFFF;
            font-size: 1.05rem;
            margin-bottom: 20px;
            font-weight: 600;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a:hover {
            color: #38BDF8;
        }

        .footer-contact-info {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 28px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.825rem;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .hero-grid, .overview-split, .story-container, .cta-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .strengths-grid, .products-grid, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-matrix-grid, .arch-topology {
                grid-template-columns: repeat(2, 1fr);
            }
            .stepper-timeline {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .stepper-timeline::before {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .top-info-bar {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
            .nav-menu {
                position: fixed;
                top: 73px;
                left: 0;
                right: 0;
                background: #FFFFFF;
                flex-direction: column;
                padding: 24px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 10px 25px rgba(0,0,0,0.1);
                display: none;
                gap: 18px;
            }
            .nav-menu.open {
                display: flex;
            }
            .hero-h1 {
                font-size: 2.15rem;
            }
            .section-title {
                font-size: 1.75rem;
            }
            .strengths-grid, .products-grid, .testimonials-grid, .news-grid {
                grid-template-columns: 1fr;
            }
            .counter-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .cta-box-wrapper {
                padding: 32px 20px;
            }
        }

        @media (max-width: 520px) {
            .counter-grid {
                grid-template-columns: 1fr;
            }
            .service-matrix-grid {
                grid-template-columns: 1fr;
            }
            .countdown-strip {
                padding: 20px 16px;
            }
            .spec-list-badge {
                grid-template-columns: 1fr;
                gap: 8px;
            }
        }